title: Assessment of a delta15N isotopic method to indicate anthropogenic eutrophication in aquatic ecosystems.
mesh_terms: D001938:Brazil; D017753:Ecosystem; D004784:Environmental Monitoring / Q000379:methods*; D056890:Eukaryota / Q000737:chemistry; D005068:Eutrophication; D005618:Fresh Water; D006801:Humans; D009587:Nitrogen Isotopes / Q000737:chemistry*; D006109:Poaceae / Q000737:chemistry; D014481:United States
chemical_list: D009587:Nitrogen Isotopes